T. rex fossil could become most expensive dinosaur ever sold BBCSouth Dakota T. rex could bring $30 million or more at auction KELOLAND.comWho Buys a $20 Million T. Rex? Inside Sotheby’s Matchmaking for ‘Gus.’ Barron’sOne of the Largest T. Rex Skeletons Ever Found Can Be Yours If You’ve Got $30 Million Lying Around VICESD T-Rex could generate record price for dino fossil KELO-AM